LOS ANGELES: Two police officers were killed and two people were injured after a bomb exploded at a bank in the western US state of Oregon,
authorities have confirmed.

A d v e r t i s e m e n t

The fatalities included a bomb disposal expert and a police chief who died after a suspicious package exploded at a branch of the West Coast Bank in Woodburn, 30 miles (48 kilometers) south of Portland, on Friday.

The bomb also seriously injured a 46-year-old police chief and a female bank employee, Oregon State Police said in a statement.

No individual or group has claimed responsibility for the bombing and authorities have issued a 35,000-dollar reward for information leading to the capture of those responsible.

The bomb was discovered after a branch of the Wells Fargo bank in Woodburn received a threatening phone call early on Friday.

The bank was evacuated but a suspicious object found at the site was not determined to be dangerous, police said.